() => {
    const obj = {
        name: "张三",
        age: 20,
        height: "180cm"
    };
    const obj2 = {
        name: "李四",
        age: 10,
        height: 200
    };
    const person = {
        name: "王五",
        age: 19,
        height: "170cm",
        weight: 130
    };
    const data1 = {
        status: "200",
        message: "ok",
        data: []
    };
};
